Yes on freezing, and peptic acid. Freezing builds up ice crystals in the fruit that helps to break up / cut the cell walls. I also understand that it can also break down the cell walls of wild yeast, and reducing the possibility of them messing around.
Pectin will reduce haze, etc..
I would also treat with some campden tablets to help kill the wild yeast.
Not really sure about an "electric yard mulcher", but hey if it's clean and works for you.

The yard mulcher idea i got from online in another forum. The mulcher is brand new and very easy to clean... no oils or grease on any of the contact parts.... i figured i would clean it with soapy water and then spray the crap out of it with starsan.

I assume peptic acid can be had readily at the local home brew store? I will pick some up today.

I am planning on taking some videos/pictures of the mulching in action... lets hope it works. If not, there is not much wasted except for time and energy.